Getting to the new Berlin Brandenburg International Airport from Potsdam on public transportation is easiest, fastest, and cheapest by train.
Hourly direct RB22 trains from Berlin Brandenburg Willy Brandt Airport (BER) offer the simplest way to travel to Potsdam near Berlin. Traveling via Berlin Hauptbahnhof or by S-Bahn is possible but takes longer and cost more.
The transportation options described here will only be available once Berlin Brandenburg Airport actually opens – the current target date is 31 October 2020. Until the airport actually opens, passengers from Schönefeld (SXF) usually do best to travel via Berlin Hauptbahnhof.
The direct RB22 train from Potsdam to Berlin Brandenburg Airport requires a Berlin public transportation BC ticket costing €3.30. Traveling via Berlin itself requires an ABC ticket costing €3.60. The Berlin Welcome Card ABC version includes transportation and discounts on attractions in Potsdam and Berlin.
By Direct Train from Berlin Brandenburg Airport to Potsdam
A direct RB22 train from Potsdam to Berlin Brandenburg International Airport provides the easiest, fastest, and cheapest transportation to Berlin’s new airport. Travelers to Potsdam no longer have to transit via central Berlin on S-Bahn trains to get to the airport, although that remains an option with departures several times per hour.
The Regionalbahn (RB22) trains from Flughafen Berlin Brandenburg Airport to Potsdam may have Potsdam, Griebnitzsee, or Friedrichstraße as final destination. From the airport, take any RB22 that does not have König Wusterhausen as destination, while to the airport all trains have König Wusterhausen as final destination.
The direct train from Potsdam to Berlin Brandenburg Airport runs hourly and takes only around 50 minutes (a bit longer from the airport). The train from Potsdam to the airport departs hourly from around 04:00 am to just before 23:00 and from the airport to Potsdam hourly from around 05:00 am to just after midnight. Traveling outside these hours requires multiple transfers but it is possible to reach the airport at all hours of the night.
The RB22 trains from Berlin Brandenburg Airport (BER) stop four times at Potsdam stations: Golm, Park Sanssouci, Charlottenhof, and finally at Potsdam Hauptbahnhof (central main station). Note that the train changes direction of travel at Golm.
The train station in the basement of Berlin Brandenburg Airport is officially station “Flughafen BER Terminal 1 — 2“ — BER usually works as an abbreviation when searching timetables.
Travel from Berlin Brandenburg Airport to Potsdam via Berlin
The direct RB22 train is the fastest and most convenient way to travel from Berlin Brandenburg Airport to Potsdam but as it runs only once per hour, the more frequent alternatives via Berlin are also worth considering. Note that traveling to Potsdam via Berlin requires an ABC ticket and at least one transfer.
The basic routing from Berlin Brandenburg Airport to Potsdam via Berlin is on any Airport Express train (FEX, RB14, or RE7) from the airport to Ostkreuz. Change here to a train to Potsdam — RE1 is fastest, S7 is more frequent. Traveling time is usually just over an hour. Other options are available but avoid any requiring more than one transfer.
Also note that the hourly RE7 trains travel through the suburbs of Potsdam, and although not stopping at Potsdam Hauptbahnhof may be convenient to many parts of Potsdam too.
See also Transportation to Berlin Brandenburg Airport for getting to the airport from other parts of Berlin and the Airport Express for the convenient train connection to Berlin Hauptbahnhof and other destinations in the center of Berlin.